
<!DOCTYPE html>
<!-- xls.js (C) 2013-2014 SheetJS http://sheetjs.com -->
<!-- vim: set ts=2: -->
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>JS-XLS Live Demo</title>
    <style>
        #drop{
            border:2px dashed #bbb;
            -moz-border-radius:5px;
            -webkit-border-radius:5px;
            border-radius:5px;
            padding:25px;
            text-align:center;
            font:20pt bold,"Vollkorn";color:#bbb
        }
        #b64data{
            width:100%;
        }
    </style>
</head>
<body>
<b>选择EXCEL文件</b><br />
<!--<input type="radio" name="format" value="csv" checked> CSV<br>
<input type="radio" name="format" value="json"> JSON<br>
<input type="radio" name="format" value="form"> FORMULAE<br> -->
<div id="msg"></div>
<div id="drop">你也可以将excel文件拉到此框中</div>
<p><input type="file" name="xlfile" id="xlf" /> ... or click here to select a file</p>
<textarea id="b64data">... or paste a base64-encoding here</textarea>
<p><input type="button" id="dotext" value="Click here to process the base64 text" onclick="b64it();"/><br /></p>
<p><input style="width: 450px; line-height: 28px;" placeholder="处理地址 http://" type="text" name="handler_url" id="handler_url"/></p>
<p><input type="button" value="submit" id="submit"/></p>
Advanced Demo Options: <br />
Use Web Workers: (when available) <input type="checkbox" name="useworker" checked><br />
Use Transferrables: (when available) <input type="checkbox" name="xferable" checked><br />
Use readAsBinaryString: (when available) <input type="checkbox" name="userabs" checked><br />
<pre id="out"></pre>
<br />
<script src="../../js/jquery-1.9.1.min.js"></script>
<!-- uncomment the next line here and in xlsworker.js for encoding support -->
<!--<script src="dist/cpexcel.js"></script>-->
<script src="shim.js"></script>
<script src="xls.js"></script>
<script>
var X = XLS;
var XW = {
    /* worker message */
    msg: 'xls',
    /* worker scripts */
    rABS: './xlsworker2.js',
    norABS: './xlsworker1.js',
    noxfer: './xlsworker.js'
};

var rABS = typeof FileReader !== "undefined" && typeof FileReader.prototype !== "undefined" && typeof FileReader.prototype.readAsBinaryString !== "undefined";
if(!rABS) {
    document.getElementsByName("userabs")[0].disabled = true;
    document.getElementsByName("userabs")[0].checked = false;
}

var use_worker = typeof Worker !== 'undefined';
if(!use_worker) {
    document.getElementsByName("useworker")[0].disabled = true;
    document.getElementsByName("useworker")[0].checked = false;
}

var transferable = use_worker;
if(!transferable) {
    document.getElementsByName("xferable")[0].disabled = true;
    document.getElementsByName("xferable")[0].checked = false;
}

var wtf_mode = false;

function fixdata(data) {
    var o = "", l = 0, w = 10240;
    for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint8Array(data.slice(l*w,l*w+w)));
    o+=String.fromCharCode.apply(null, new Uint8Array(data.slice(l*w)));
    return o;
}

function ab2str(data) {
    var o = "", l = 0, w = 10240;
    for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint16Array(data.slice(l*w,l*w+w)));
    o+=String.fromCharCode.apply(null, new Uint16Array(data.slice(l*w)));
    return o;
}

function s2ab(s) {
    var b = new ArrayBuffer(s.length*2), v = new Uint16Array(b);
    for (var i=0; i != s.length; ++i) v[i] = s.charCodeAt(i);
    return [v, b];
}

function xw_noxfer(data, cb) {
    var worker = new Worker(XW.noxfer);
    worker.onmessage = function(e) {
        switch(e.data.t) {
            case 'ready': break;
            case 'e': console.error(e.data.d); break;
            case XW.msg: cb(JSON.parse(e.data.d)); break;
        }
    };
    var arr = rABS ? data : btoa(fixdata(data));
    worker.postMessage({d:arr,b:rABS});
}

function xw_xfer(data, cb) {
    var worker = new Worker(rABS ? XW.rABS : XW.norABS);
    worker.onmessage = function(e) {
        switch(e.data.t) {
            case 'ready': break;
            case 'e': console.error(e.data.d); break;
            default: xx=ab2str(e.data).replace(/\n/g,"\\n").replace(/\r/g,"\\r"); console.log("done"); cb(JSON.parse(xx)); break;
        }
    };
    if(rABS) {
        var val = s2ab(data);
        worker.postMessage(val[1], [val[1]]);
    } else {
        worker.postMessage(data, [data]);
    }
}

function xw(data, cb) {
    transferable = document.getElementsByName("xferable")[0].checked;
    if(transferable) xw_xfer(data, cb);
    else xw_noxfer(data, cb);
}

function get_radio_value( radioName ) {
    var radios = document.getElementsByName( radioName );
    for( var i = 0; i < radios.length; i++ ) {
        if( radios[i].checked || radios.length === 1 ) {
            return radios[i].value;
        }
    }
}

function to_json(workbook) {
    var result = {};
    workbook.SheetNames.forEach(function(sheetName) {
        var roa = X.utils.sheet_to_row_object_array(workbook.Sheets[sheetName]);
        if(roa.length > 0){
            result[sheetName] = roa;
        }
    });
    return result;
}

function to_csv(workbook) {
    var result = [];
    workbook.SheetNames.forEach(function(sheetName) {
        var csv = X.utils.sheet_to_csv(workbook.Sheets[sheetName]);
        if(csv.length > 0){
            result.push("SHEET: " + sheetName);
            result.push("");
            result.push(csv);
        }
    });
    return result.join("\n");
}

function to_formulae(workbook) {
    var result = [];
    workbook.SheetNames.forEach(function(sheetName) {
        var formulae = X.utils.get_formulae(workbook.Sheets[sheetName]);
        if(formulae.length > 0){
            result.push("SHEET: " + sheetName);
            result.push("");
            result.push(formulae.join("\n"));
        }
    });
    return result.join("\n");
}

var tarea = document.getElementById('b64data');
function b64it() {
    if(typeof console !== 'undefined') console.log("onload", new Date());
    var wb = X.read(tarea.value, {type: 'base64',WTF:wtf_mode});
    process_wb(wb);
}

function process_wb(wb) {
    if(use_worker) XLS.SSF.load_table(wb.SSF);
//    var output = "";
    var output = JSON.stringify(to_json(wb), 2, 2);
//    switch(get_radio_value("format")) {
//        case "json":
//            output = JSON.stringify(to_json(wb), 2, 2);
//            break;
//        case "form":
//            output = to_formulae(wb);
//            break;
//        default:
//            output = to_csv(wb);
//    }
    if(out.innerText === undefined) out.textContent = output;
    else out.innerText = output;
    if(typeof console !== 'undefined') console.log("output", new Date());
}

var drop = document.getElementById('drop');
function handleDrop(e) {
    e.stopPropagation();
    e.preventDefault();
    rABS = document.getElementsByName("userabs")[0].checked;
    use_worker = document.getElementsByName("useworker")[0].checked;
    var files = e.dataTransfer.files;
    var f = files[0];
    {
        var reader = new FileReader();
        var name = f.name;
        reader.onload = function(e) {
            if(typeof console !== 'undefined') console.log("onload", new Date(), rABS, use_worker);
            var data = e.target.result;
            if(use_worker) {
                xw(data, process_wb);
            } else {
                var wb;
                if(rABS) {
                    wb = X.read(data, {type: 'binary'});
                } else {
                    var arr = fixdata(data);
                    wb = X.read(btoa(arr), {type: 'base64'});
                }
                process_wb(wb);
            }
        };
        if(rABS) reader.readAsBinaryString(f);
        else reader.readAsArrayBuffer(f);
    }
}

function handleDragover(e) {
    e.stopPropagation();
    e.preventDefault();
    e.dataTransfer.dropEffect = 'copy';
}

if(drop.addEventListener) {
    drop.addEventListener('dragenter', handleDragover, false);
    drop.addEventListener('dragover', handleDragover, false);
    drop.addEventListener('drop', handleDrop, false);
}


var xlf = document.getElementById('xlf');
function handleFile(e) {
    rABS = document.getElementsByName("userabs")[0].checked;
    use_worker = document.getElementsByName("useworker")[0].checked;
    var files = e.target.files;
    var f = files[0];
    {
        var reader = new FileReader();
        var name = f.name;
        reader.onload = function(e) {
            if(typeof console !== 'undefined') console.log("onload", new Date(), rABS, use_worker);
            var data = e.target.result;
            if(use_worker) {
                xw(data, process_wb);
            } else {
                var wb;
                if(rABS) {
                    wb = X.read(data, {type: 'binary'});
                } else {
                    var arr = fixdata(data);
                    wb = X.read(btoa(arr), {type: 'base64'});
                }
                process_wb(wb);
            }
        };
        if(rABS) reader.readAsBinaryString(f);
        else reader.readAsArrayBuffer(f);
    }
}
if(xlf.addEventListener) xlf.addEventListener('change', handleFile, false);

$("#submit").on('click', function(){
    var data = $("#out").text(),
        handler_url = $("#handler_url").val();
//    console.log(data);
    $.post(handler_url, data, function(res){
        $("#msg").html(res);
    });
});
</script>
</body>
</html>
